UCMP B-771, Lotta Creek: Oxfordian - Valanginian, California
collected by M. Maddock 1952
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pectinida
- Buchiidae
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Buchia sp.
Rouillier 1845
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| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | Stanislaus |
| Coordinates: | 37.4° North, 121.3° West (view map) | ||||
| Paleocoordinates: | 32.9° North, 66.2° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic - Cretaceous | Epoch: | Late Jurassic - Early Cretaceous |
| Stage: | Oxfordian - Valanginian | 10 m.y. bin: | Jurassic 5 - Cretaceous 1 |
| Key time interval: | Oxfordian - Valanginian | ||
| Age range of interval: | 161.5 - 132.6 m.y. ago |
Stratigraphy
| Formation: | Hawk Shale |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | concretionary lithified "shale" |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis | ||
| Museum repositories: | UCMP | ||
| Collectors: | M. Maddock | Collection dates: | 1952 |
Metadata
| Also known as: | 31-49-1F | ||
| Database number: | 185399 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2017-04-21 22:57:31 | Last modified: | 2017-04-21 22:57:31 |
| Access level: | the public | Released: | 2017-04-21 22:57:31 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 62141. | W. P. Elder and J. W. Miller. 1993. Map and checklists of Jurassic and Cretaceous macrofossil localities within the San Jose 1:100,000 Quadrangle, California, and discussion of paleontological results. United States Geological Survey Open-File Report 93-503:1-49 [M. Clapham/M. Clapham] |